When a fully charged lead negative electrode stood for one month in 1.0 M H,SO, solution at a temperature of 298.15K, it was passivated through so-called "sulfation" as indicated by a decrease in the redox peak currents on cyclic voltammograms. As a method of reactivating the passivated lead negati
A potentiodynamic study of the lead electrode in sulphuric acid solution
β Scribed by Yoshifumi Yamamoto; Koichi Fumino; Takumi Ueda; Masaru Nambu
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 453 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0013-4686
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β¦ Synopsis
Cyclic voltammetry has been used to study the electrochemical redox behaviour of the Pb/PbO,&PbSO, system on the lead electrode in aqueous H,SO, solutions. The ancdic and the cathodic polarization behaviour has been investigated under the'various conditions by changing the potential region, sweeping rate, and concentration of an electrolyte. The mutual electrochemical behaviour of Pb/PbO,,,,z,/PbSO, is discussed in detail.
π SIMILAR VOLUMES
The electrochemical behaviour of the dilute intercalation compounds prepared in the reaction of graphite with molten 00, has been examined in 0.25 M H,SO, using a slow (1 mVs\_') potentiodynamic method. The measurements were carried out in a potential range between 0.4 and 1.5 V. Due to deintercalat
The anodic dissolution of lead in perchloric acid-sulphuric acid mixtures has been studied using potentiodynamic sweeps and current step measurements. As the surface concentration of lead increases, lead sulphate precipitates at the surface. This solid phase is not in equilibrium with the bulk solut
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